meuse.all {GeoXp}R Documentation

Meuse river data set - original, full data set

Description

This data set gives locations and top soil heavy metal concentrations (ppm), along with a number of soil and landscape variables, collected in a flood plain of the river Meuse, near the village Stein. Heavy metal concentrations are bulk sampled from an area of approximately $15 times 15 m$.

Usage

data(meuse.all)

Format

A data frame with 164 observations on the following 17 variables.

sample
sample number
x
a numeric vector; x-coordinate (m) in RDM (Dutch topographical map coordinates)
y
a numeric vector; y-coordinate (m) in RDM (Dutch topographical map coordinates)
cadmium
topsoil cadmium concentration, ppm.; note that zero cadmium values in the original data set have been shifted to 0.2 (half the lowest non-zero value)
copper
topsoil copper concentration, ppm.
lead
lead topsoil lead concentration, ppm.
zinc
topsoil zinc concentration, ppm.
elev
elev relative elevation
dist.m
distance to river Meuse (metres), as obtained during the field survey
om
organic matter, as percentage
ffreq
flooding frequency class
soil
soil type
lime
lime class
landuse
landuse class
in.pit
logical; indicates whether this is a sample taken in a pit
in.meuse155
logical; indicates whether the sample is part of the `meuse' (i.e., filtered) data set; in addition to the samples in a pit, an sample (139) with outlying zinc content was removed
in.BMcD
logical; indicates whether the sample is used as part of the subset of 98 points in the various interpolation examples of Burrough & McDonnell

Details

This data set provides from gstat package.

Source

The actual field data were collected by Ruud van Rijn and Mathieu Rikken; data compiled for R by Edzer J. Pebesma

References

P.A. Burrough, R.A. McDonnell, 1998. Principles of Geographical Information Systems. Oxford University Press, http:/www.gstat.org/

Examples

data(meuse.all)

[Package GeoXp version 1.0 Index]